Beryllium-aluminum alloy



30 Sheets-Sheet 1 Aug. 22, 1.967 R. w. PENN, JR., ETAL BERYLLIUM *ALUMINUM ALLOY Filed Dec. 6, 1963 Aug 22, 1967 R. w. FENN, JR., ETAL3,337,334

BERYLLIUM-ALUMINUM ALLOY Filed Dec. 6, 1963 30 Sheets-Sheet 3 INVENTORSRAYMOND W. FENN,Jr. DONALD D. CROOKS CLAUS G. GOETZEL HENRY W. LAVENDELMORRIS A. STEINBERG ER IN E UND WOOD Aug. 22, 1967- R. W. FENN., JR.,ETALl BERYLLIUM-ALUMINUM ALLOY 3o Sheets-Sheet 4 Filed Dec. 6. 1963INVENTORS W FENN Aug. 22, A1967 R. w. FENN, JR..y ETAI.`

BERYLLIUM-ALUMINUM,ALLOY 30 Sheets-Sheet 5 Filed Dec. 6, 1963 Aug- 22,1967 R. w. PENN. JR., ETAL 3,337,334

BERYLLIUM-ALUMINUM ALLOY I Filed Deo. 6. 19653 30 Sheets-Sheet 6 EFFECTOF COMPO-SITIOON AND HEAT TREATMENT ENSILE PROPERTIES OF BE-ALEXTRUSIONS U8- 22, 1967 R. w. FENN, JR., ETAL 3,337,334

BERYLLIUM- ALUMINUM ALLOY Filed Dec. 6. 1963 EO'Sheets-Sheet 7 EFFECT OFANNEALING ON YOUNG'S MODULUS 8| ELONGATION OF BERYLLIUM- ALUMINUMEXTRUSIONS (LONGITUDINAL DIRECTION) RAYMOND W. FENN.Jr. NALD D. CRooKsLAUS G GoETzEL HENRY w. 'LAvENDEL FG.. 9 l ggwsE/LUSTEINBERGBERYLLIUM-ALUMINUM ALLOY `Filed Dec. I

30 Sheets-Sheet 8 ENSILE YTELD'STRENGTH oF BERYLuuM-ALUMINU TENSILESTRENGTH a T M ExTRusloNs vs ANNEALING TEMPERATURE DINA DIREcTloN) 75 F(LoNslTu mnzmzm...

(AS-EXTRUDED) TEMP.

I6 HRS.

. G r .LR SJME RNOZNB ONOT m TEREEE NF OVT. CGAS 0. ww. L w DG. N nl .WDWAE ND S OLSYI MAURRW mmwmmm RDCHME v, B N w s U R T. X E R E T F A L AE N N A l n l Aug. 22, '1967 R` W. FENN, JR., ETAL BERYLLIUM- ALUMINUMALLOY Filed Deo. 6, 1963 50 Sheets-Sheet 9 SUMMARY F DEND DATA FDRBERYLLIUM ALUMINUM ALLOYS BEND ANGLE oF L0c I 4ALL0Y AND BERYLLIUM .020"THICK SHEET, w/T= 25 "o (ALL0Ys#4,T,9I '0 I TRANS. 210

so UNBRDKEN vw a 430 3|.4 36.I /o 43.0 SIIVIO LONG AI LONG. 5 3|.4 TRANS5o- LOCKALLOY 50 :o "As- RDLLED" N75 F, IsHRs. /,Be E

'o RISDILE'D L'II" BEND ANGLE OF LOCKALLOY EXTRUSIONS VS BERYLLIUMsPEcIMENs:-.05s THIcK (#5,8,I0I cms'Rm-LE' IMT zI W/T=e.5 IMT =4.3(WIDTH/THICKNESS) x00 I* 500 Sl" I I* ANNEALED 50 ANNEALED I w A@ L 43.3/o E ANNEALED 330 350355 AI '-L w ssewAwb j?, 330355 AI I As- EXT." 5 uu n n 2G IAS FTXT. TAS-EXT. 33. 33 Io 35s 35 33.0 35B .3 Be Be-AI ALLoYDe Be-AI ALLDY De Be-AI ALLoY ae-Ies-I-Rs. IIF

EFFECT OF HEAT TREATMENT IFRlOR TO ROLLING ON BEND ANGLE .040" THICKBessw AI sIIEET#(sI=, as, DE) loo I l I (ROLLED BI-DIlSgTIONALLY) t?.IAS w N a0 wn-:N '2 :geo "FHISHRTGL W/T=-I 8 I NA o soso InF l o -I IJ o4 LO I NGlTqD/NA` o 20 TR E` w 2o K 5 ANsvERsE S z CD o i I l o I|5oFIITsF IaooE IIsoF I200F 24 HRS. I6 HRS. I6 HRS. 24HRS. I6 HRS. IGHRSHEAT TREATMENT PRIOR TO ROLLING lINVENTORS RAYMOND w. FENN,JI. DONALD D.CROOKS FBG- CLAus G. GoETzEL Aug. 22, 1967 R.w. PENN, JR., ETAL3,337,334

BERYLLIUM-ALUMINUM ALLOY Filed Dec. 64. 1963 30 Sheets-Sheet ll Aug'22,1957 R. w. EEN-N, JR., ETAI. 3,337,334

BERYLLIUM-ALUMINUM ALLOY 30 Sheets-SheeIl 12 Filed Dec. 6. 1965 Be- 35.8W/O Al EXTRUDED ALLOY (XIOOO) AS EXTRUDED PLUS l|80F/|6 HOURS D, MEANINTERcEPT PARTIcLE DIAMETER A, MEAN FREE INTERPARTICLE- DISTANCE n, MEANAREA oF ALUMINUM "ISLANDS" Lp, MEAN PERIMETER LENGTH oF ALUMINUM"ISLANDS" (DARK PHASE IS BERYLLIUM RICH) SCHEMATIC REPRESENTATION OFMICROSTRUCTURAL FEATURES FIG ,I4

Asie@ MEAN FREE DISTANCE, L#

BERYLL IUM- ALUMINUM ALLOY Filed Dec. e. 196s so sheets-sheet 13DIAMETER (D) AND MEAN FREE DISTANCE (M |N ExTRuDED BERYLLIUM-ALUMINUMALLoYs ANNEALING TIMES ABOUT I6 HOURS AT TEMPERATURE INTERCEPT DIAMETER,d. lu. .A

EUTECTIC 0 ExTRuDED soo soo noo 120D oo ANNEALING TEMPERATURE, "FINVENTORS RAYMoNDw. FENN,Jr. DONALD D. cRooKs FI G I Aus G. GoETzELHENRY W. LAVENDEL MORRIS A. STEINBERG ERVIN E, UNERwooD I l ge'nf Aug-22, 1967 R. w. FENN, JR., ETAL 3,337,334I

BERYLLIUM-ALUMINUM ALLOY 30 Sheets-Sheet l5 Filed DeC. G, 1963 HARDNESSVS MEAN FREE DISTANCE EXTRUDED ALLOYS WITH AND WITHOUT AN ANNEALBERYLLIUM- ALUMINUM ALLOYS cons:

e as "/0 Al A 35.8 W/o Al NEE 8. com .wmmz 2.565

MEAN FREE INTERPARTICLE DISTANCE, )\u.

INVENTORS RAYMOND w. F DONALD D.

CLAUS G. GOETZEL HENRY W. AVENDEL AORRIS A TEINBERG RvIN E. U

FIG- I7 RWOOD gent Aug-22,1967 R w.FE--,JR- Em. 3,337,334`

BERYLL I UM-ALUMINUM ALLOY Filed Dec. 6 1963 30 Sheets-Sheet leELONGATION VS INTERFACE LENGTH IN BERYLLIUM- ALUMINUM ALLOYS TOTALLENGTH OF INTERFACE TRACE PER UNIT AREA, LA trim/mm2 o .www

. r. Fl s la Imm D. CLAUS G. GOETZEL HENRY W. LAVENDEL MORRIS A.STEINBERG ERVIN E. UN ERWOQD B Aug. 22, 1967 -R w,-FENN, JR., ETAL3,337,334 I BERYLLI UM- ALUMINUM ALLOY Filed De@ @I 1963 so sheets-sheet1v ELONGATION,

ELONGATION VS VARIOUS STRUCTURAL PARAMETERS FOR EXTRUDED ALLOYS (WITHAND WITHOUT AN ANNEAL) A 35.8 "Z, Al

El 43.3 W4, A|

. 2 3 COMPLEITY INDEX, (Lp/cl), p."

O I I MEAN FREE DISTANCE, u. MEAN PARTICLE DIAMETER, D lu.

FIG- I9 IN VENTORS RAYMOND W. FENNJI. NALD (ROOKS LAUS OETZEL y HENRY W.LAVENDEL MORRIS A. STEINBERG y ERVIN E. U DERWQOD Aqent ELASTIC MODULUS, KPSI YIELD STRENGTH, KPSI Aug. 22, 1967 R. w. FENN, JR..l ETAL yI 3,337,334

l BERYLLIUM-ALUMINUM ALLOY I Filed Dec. 6, 1963 30 Sheets-Sheet 1.9

ELASTIC MODULUS YIELD STRENGTH VS COMPLEXITY INDEX E o EXTRUSION ALLOYS(WITH AND WITHOUT AN ANNEAL) s 32 l `&\

I3 2a l o 33.0 "/0 Al I 35.8% Al 24 I El 43.3% Al 30 E. .E..- .Q ---.E..M*l

I. fo- "`A` v -l v y eo- 'www wwn M l l .o j

I I@ A 2o i BYMoND PENN..." NALD D. RooKs CLAUS G. oETzEL HENRY w.LAVENDEL MORRIS A. STEINBERG By ERVIN E. UNDERwooD I ELASTIC MGDULUS,KPSI Aug. 22, 1967 R. W. FENN, JR.. ETAL BERYLLIUM -ALUMINUM ALLOY FiledDec. 6. 1963 50 Sheets-Sheet 2O v ROLLED ALLOYS WITH AND WITHOUT ANANNEAL cuRvE FoR Exmunsn a l ANNEALED ALLoYs v I I 32- l I l I l ox- I IvI 28 I Iv v I as R v 'I 9 @I 24 g o I 2 K 5 4 s coMPLExITY lNoEx,(Lp/a). fr'

INVENTORS RAYMOND W. FENNJ". DONALD D. cRooKs CLAus G. GoETzEL UENRY W.LVENDEL ORRIS TEINBERG ERVIN E N

1. BERYLLIUM-ALUMINUM ALLOYS CONSISTING ESSENTIALLY OF AT LEAST 50% BYWEIGHT OF BERYLLIUM WITH THE REMAINDER BEING PRIMARILY ALUMINUM WHICHHAVE A COMPLEXITY INDEX WITHIN THE RANGE OF FROM APPROXIMATELY 1 TOAPPROXIMATELY 5.